Mr. Gasket Engine Timing Cover Seal

Mr. Gasket Engine Timing Cover Seals: Race-Proven Sealing Technology

When it comes to keeping oil where it belongs and protecting your valvetrain's timing components, few names carry more credibility than Mr. Gasket. Using his own '57 Chevy as a rolling test bed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. That racing-first DNA still shows up in every product the brand produces — including its line of engine timing cover seals.

What Makes Mr. Gasket Timing Cover Seals Stand Out

Mr. Gasket Timing Cover Seals are manufactured from a special nitrile rubber and a high-density cork/rubber blend that guarantees a total seal. This material choice is no accident — nitrile rubber offers excellent resistance to oil, heat, and the constant mechanical stress that comes with a spinning crankshaft snout. The construction combines metal with a nitrile rubber seal, giving each unit the structural rigidity to seat properly in the timing cover bore while the rubber lip maintains a leak-free contact surface against the crankshaft.

This rubber seal goes in the front timing cover and seals the opening where the crankshaft goes through — a location that is under constant rotational stress, heat cycling, and exposure to engine oil. A failed timing cover seal is more than just a nuisance oil leak; it can contaminate the timing chain area, attract dirt and debris, and eventually affect timing chain life if ignored. Replacing this seal during any camshaft or timing set service is a best practice that Mr. Gasket itself recommends.

Broad Application Coverage for Classic American V8s

Engineered specifically for small-block Chevys, they're a direct replacement for Original Equipment seals and ideal for both high-performance and racing applications. Mr. Gasket's timing cover seal lineup extends well beyond the classic small-block Chevy, however. Fitments include 1955–2002 Chevrolet 262–400 Gen I Small Block and 1965–2000 Chevrolet 396–502 Big Block, 1979–1992 Mopar 318/360 LA Small Block, and 1992–2003 Mopar 3.9L/5.2L/5.9L Magnum engines, making the lineup a versatile solution for builders working with classic American V8 powerplants. Additional coverage spans AMC, Pontiac, Oldsmobile, and Ford V8 platforms.

Trusted by Racers, Engineered for the Street

Hrudka quickly established Mr. Gasket as the go-to gasket source for racers with a line of gaskets and fasteners that sealed perfectly every time and withstood the punishing temperatures and pressures of racing. Now an important part of Holley Performance, Mr. Gasket continues to expand application coverage with more and more new products for race cars and muscle cars alike. Whether you're refreshing a numbers-matching restoration or building a weekend drag car, you can trust that a Mr. Gasket timing cover seal has been held to the same standards that earned the brand its legendary reputation on the track.

Browse the full selection of Mr. Gasket Engine Timing Cover Seals to find the right fit for your build, or explore the complete Mr. Gasket brand catalog for all your engine sealing and performance hardware needs.